GoZyuJin (豪獣神) is the personal secondary mecha of GokaiSilver (Gai Ikari), the sixth warrior in the Japanese series Kaizoku Sentai Gokaiger (2011). It serves as an auxiliary robot alongside the team's main mecha, GokaiOh. In the US adaptation Power Rangers Super Megaforce (2014), the same design appears as the Q-Rex Megazord, the personal Zord of the Silver Ranger, Orion. Within the story, GoZyuJin is treated as the manifestation of the "Greater Power" of the earlier series Bakuryu Sentai Abaranger.

GoZyuJin is controlled via Ranger Keys and shifts between three modes: GoZyuDrill, a drill-tipped jet/vehicle mode (summoned from the future using the TimeFire Key in the show); GoZyu Rex, a Tyrannosaurus robot with a drill for a tail (DragonRanger Key); and GoZyuJin itself, a humanoid robot with an anchor-shaped helmet, a drill on its right hand, and the GoZyu Rex head mounted on its left arm (AbareKiller Key). For stronger combinations it docks with GokaiOh: together they form GoZyu GokaiOh, and with the addition of the Machalcon mecha they create the most powerful form, Kanzen GokaiOh ("Complete GokaiOh"), whose finishing move is the Gokai Kanzen Burst.

The DX toy, DX GoZyuJin, was released in 2011 by Bandai Japan as part of the Gokaiger toyline. It is a single model made predominantly of ABS plastic that reproduces all three modes (GoZyuDrill, GoZyu Rex, GoZyuJin) purely by folding and re-arranging its own parts, with no extra pieces required. Using standard connection points, it plugs into the separately sold DX GokaiOh to build the combined forms (Kanzen GokaiOh additionally requires the DX Machalcon). For the US market, Bandai America released the largely identical DX Q-Rex Megazord (around 2014) with different deco and packaging. This mecha is therefore not a Japan-exclusive item — an official Power Rangers release exists.